Published November 1989 | Version v1
Journal article Metadata-only

Processes of mutual precipitation in the ZrO2-In2O3-Nd2O3 and ZrO2-In2O3-Y2O3 systems

Creators

  • 1. AN SSSR, Leningrad (USSR). Inst. Khimii Silikatov

Description

Optimal conditions of coprecipitation of Zr, In, Nd, Y hydroxides from nitric acid solutions by ammonium hydroxide solution were determined. Hydroxide precipitation was observed in the following pH ranges: 1.5-2.0 - for Zr, 3.0-4.3 - for In, 6.5-8.0 - for Nd and Y. Coprecipitation was conducted at pH 9-10. Thermal transformations of coprecipitated hydroxides were studied. Conditions of crystallization of intermediate and final phases in ZrO2-In2O3-Nd2O3(Y2O3) system were determined

Additional details

Additional titles

Original title (Russian)
Процессы совместного осаждения в системах ZrO

Publishing Information

Journal Title
Zhurnal Neorganicheskoj Khimii
Journal Volume
34
Journal Issue
11
Series
Zh. Neorg. Khim.
Journal Page Range
2980-2983
ISSN
0044-457X
CODEN
ZNOKA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
21081996
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHEMICAL REACTION KINETICS; COPRECIPITATION; CRYSTALLIZATION; INDIUM HYDROXIDES; MIXTURES; NEODYMIUM HYDROXIDES; PH VALUE; PHASE STUDIES; PYROLYSIS; PYROLYSIS PRODUCTS; QUANTITY RATIO; REACTION INTERMEDIATES; YTTRIUM HYDROXIDES; ZIRCONIUM HYDROXIDES
Descriptors DEC
CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; HYDROGEN COMPOUNDS; HYDROXIDES; INDIUM COMPOUNDS; KINETICS; NEODYMIUM COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PRECIPITATION; RARE EARTH COMPOUNDS; REACTION KINETICS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS